so i have a 91 4 door civic, i wanna put an ls 1.8 in, i found someone selling the engine but i need to know wat else i need, thanks for the help

 

Are they selling just the motor itself? With the tranny? Or what, more info helpful.

 

not enough info.

 

for sure not enough info but the basics are
engine
cable tranny
custom shift linkage
custom mounts
custom wiring
ecu corrosponding with your obd
throttle cable integra da
clutch cable integra da
integra hubs or rig it but recomend changing all four corners to integra brakes
distributor for the obd you run
this is a very hard swap to get right with out prior knowledge of honda swaps